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energy pyramid
a diagram that show the movement of energy throughout the ecosystem

food web
a system of food chains that illustrates the movement of energy (food) through the ecosystem

food chain
a linear illustration that show the movement of energy from one organism to another

producer
an organism that can make its own food to get energy; mostly plants

consumer
an organism that eats to get energy

decomposer
an organism that breaks down waste and dead organisms for energy
mushrooms; earthworms; bateria

predator
an animal that hunt another animal for food

prey
an animal that is caught and eaten

cooperation
a relationship between organisms work together and interact for the benefit of all (more than two)
mutualism
a relationship between organisms where both benefit

commensalism
a relationship between both organisms where one benefits and the other is not helped or harmed

parasitism
a relationship between two organisms where one benefits and one is harmed

competition
when many organism fight for the same resources to survive; one benefits, one loses out on something

symbiotic relationship
a relationship between organisms within their ecosystem

social hierarchy
an animal group's order within its community